Brass with zinc as the main add elements of copper alloy, has a beautiful yellow, generally referred to as brass. Copper zinc simple binary alloy called ordinary brass or brass. Zinc in 36 ~ 42% between the brass alloy composed and solid solution, the most commonly used are zinc 40% of brass. In order to improve the performance of the common brass, often add other elements, such as Mn some time used as de oxidant, its small quantity have a grain refining effect.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 57.00 | 59.00 |
| Pb | – | 0.80 |
| Al | – | 0.10 |
| Fe | – | 1.50 |
| Mn | 1.00 | 2.50 |
| Ni | – | 0.10 |
| Sn | – | 0.50 |
| Si | – | 0.10 |
| Total Others | – | 0.5 |
| Zn | Remainder |
Mechanical Properties According To Din 17672 (As Per Temper F44)
| Range (mm) | From | To | UTS Min (N/mm²) | PS Min (N/mm²) | Elongation Min (%) | Hardness Min (HB) | Hardness Max |
| Round (Dia) | 10 | 80 | 440 | 170 | 20 | 120 | – |
| Hex (A/F) | 9 | 70 | 440 | 170 | 20 | 120 | – |
| Square (A/F) | 9 | 60 | 440 | 170 | 20 | 120 | – |
| Rectangle (Thickness) | 5 | 30 | 440 | 170 | 20 | 120 | – |
| Physical Properties |
| Density | 8.45 g/cm3 |
| FABRICATION PROPERTIES |
| Workability in cold conditions. |
| Good corrosion resistance. |
| For machine parts when substantial strength and corrosion resistance are required. |
TYPICAL USES
- Fittings
- Valves
- Bolts and nuts
- In a refrigeration and air conditioning
